1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zhenek [66]
3 years ago
12

What number must be added to the expression below to complete the square?

Mathematics
2 answers:
DedPeter [7]3 years ago
8 0

Answer:

1/4

Step-by-step explanation:

To complete the square, use the formula (b/2)^2

The Quadratic Formula is: a+bx+c

thus a = x^2, b = -1

You then plug in the numbers in the formula above

(b/2)^2 = (-1/2)^2 = (1/2)^2 =1/4

stiv31 [10]3 years ago
7 0

D. 1/4

Explanation:

a perfect square is written in the form

(x+a)^2 = x^2 + 2ax +a^2 (1)

In our problem, we have this perfect square:

x^2 - x + C (2)

with C being unknown. However, by comparing (1) and (2), we know that

2a=-1

So, we find

a=-\frac{1}{2}

and therefore, the missing term must be

a^2 = \frac{1}{4}

so the complete square is

x^2 -x +\frac{1}{4}

You might be interested in
Plz help me my mom and dad don't know this
bezimeni [28]
X/y
x=1 when y= 5
x=2 when y =10
the constant of proportionality = 1/5
7 0
3 years ago
Colin received a bonus check for 2,500$. He is going to deposit the money into his bank account that receives 5.5% simple intere
alex41 [277]
This is the concept of financial mathematics, the simple interest rate is given by:
S.I.=(PRT)/100
where:
P=principle=$2500
R=rate=5.5%
T=time=1 year
Hence;
S.I.=(5.5*2500.1)/100
=$137.5
Thus the total amount he had after 1 year will be:
2500+137.5
=$2,637.5
6 0
3 years ago
Ok guys i have only 1 hr to get this. Determine the y-intercept for the equation 3x + 2y = 12. HELP
sukhopar [10]

Answer:

x= -2/3 y+4

Step-by-step explanation:

Let's solve for x.

3x+2y=12

Step 1: Add -2y to both sides.

3x+2y+−2y=12+−2y

3x=−2y+12

Step 2: Divide both sides by 3.

3x

3

=

−2y+12

3

5 0
2 years ago
Need help with this question, if you don’t know it don’t answer it please
Lerok [7]

Answer:

54

Step-by-step explanation:

9 x 3 x 2 = 54

7 0
3 years ago
Read 2 more answers
the side of a triangle are in the extended ratio of 3:2:4 if the length of the shortest side is 6cm what is the length of the lo
Nat2105 [25]
In the ratio, the numbers are 2 for the shortest side, 3 for the middle sized side, and 4 for the longest side.

2 is to 6 cm as 4 is to x

2/6 = 4/x

2x = 4 * 6

2x = 24

x = 12

Answer: The longest side measures 12 cm.
7 0
3 years ago
Other questions:
  • Help me find the GCF 93 AND 62
    9·1 answer
  • Given the following recurrence relation: An=(−2)An−1, with A0=(−1)
    9·1 answer
  • Will walked 5 miles to school. He walked 7 miles back home because he took the long way. How many miles dis he walk in all?
    8·2 answers
  • How many different ways can you add two odd numbers to get a sum of 20 and add examples
    14·1 answer
  • Evaluate 24nk if n= 6 and k = 8
    6·2 answers
  • You go to the bakery with $20. You buy a small cake for 12.75. cookies cost .75 each. How many cookies can you buy ?
    11·2 answers
  • The length of a rectangular garden is 8 feet longer then it’s with if the gardens perimeter is 196 feet what is the area of the
    11·1 answer
  • Stuart bought a sweater that was on sale for 30% off the regular price. He also had an additional 25% off coupon. If the origina
    6·1 answer
  • ​Zeros: -1​, 1​, 8​; ​ degree: 3
    15·1 answer
  • Find the sequence 5n+1
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!